Question 1

Which of the following correctly represents the symbol and charge for the ion formed by magnesium?

Accepted Answer

$$\mathrm{Mg}^{2+}$$

Question 2

Which of the following compounds is an example of an ionic compound?

Accepted Answer

Sodium chloride ($$\mathrm{NaCl})$$

Question 3

Which of the following best describes a hydrogen bond?

Accepted Answer

An attraction between a hydrogen atom bonded to a highly electronegative atom and another electronegative atom

Question 4

Which of the following molecules would have a trigonal pyramidal geometry?

Accepted Answer

$$\mathrm{NH}_3$$

Question 5

Which of the following is a property characteristic of organic compounds compared to inorganic compounds?

Accepted Answer

They generally have lower melting points.

Question 6

What is the IUPAC name for the following structure: $$\mathrm{CH}_3\mathrm{CH}_2\mathrm{CH}_2\mathrm{CH}_3$$?

Accepted Answer

Butane

Question 7

Which of the following is a saturated hydrocarbon?

Accepted Answer

Cyclohexane

Question 8

Which of the following compounds can exhibit cis-trans isomerism?

Accepted Answer

2-butene

Question 9

What is the structural formula of benzene?

Accepted Answer

A six-carbon ring with alternating double bonds

Question 10

Which of the following is the correct IUPAC name for the compound with the structure $$\mathrm{CH}_3\mathrm{CH}_2\mathrm{OH}$$?

Accepted Answer

Ethanol

Question 11

Which of the following compounds will give a positive Tollens' test?

Accepted Answer

Propanal

Question 12

Which of the following is a secondary alcohol?

Accepted Answer

2-propanol

Question 13

Which of the following best describes the combustion reaction of an alkane?

Accepted Answer

$$\mathrm{C}_x\mathrm{H}_y + \mathrm{O}_2 \rightarrow \mathrm{CO}_2 + \mathrm{H}_2\mathrm{O}$$

Question 14

Which of the following compounds is most soluble in water?

Accepted Answer

Methanol

Question 15

Which of the following is the correct IUPAC name for the compound with the structure $$\mathrm{CH}_3\mathrm{CH}_2\mathrm{COCH}_3$$?

Accepted Answer

2-butanone

Question 16

Which of the following is an ether?

Accepted Answer

Diethyl ether ($$\mathrm{CH}_3\mathrm{CH}_2\mathrm{OCH}_2\mathrm{CH}_3)$$

Question 17

Which of the following best describes the addition reaction of ethene with hydrogen?

Accepted Answer

$$\mathrm{C}_2\mathrm{H}_4 + \mathrm{H}_2 \rightarrow \mathrm{C}_2\mathrm{H}_6}$$

Question 18

Which of the following is the correct classification for the compound $$\mathrm{CH}_3\mathrm{CH}_2\mathrm{SH}$$?

Accepted Answer

Thiols

Question 19

Which of the following statements about cis-trans isomers is correct?

Accepted Answer

They occur in alkenes due to restricted rotation around the double bond.

Question 20

A patient is exposed to formaldehyde ($$\mathrm{HCHO}) in a $$laboratory accident. Which functional group is present in this compound?

Accepted Answer

Aldehyde

Exam 2 Study Guide: Ionic & Molecular Compounds, Hydrocarbons, and Oxygen-Containing Organic Compounds

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